Question

我已经做到了这一点，当用户点击WASD时，它会使smooth_x或smooth_y变为5，以便不断添加到x或y坐标以模拟运动。

但是我有一个问题，如果用户按住A然后他们同时点击D，它会使smooth_x为0，导致用户留在原地。

EG用户点击D（smooth_x = 5）用户点击A（smooth_x = -5）用户持有D然后持有A然后放开D导致smooth_x为= 0导致用户停止移动我没有＆＃39不想要。在这种情况下，smooth_x应该是= -5

while gameloop == True:
num_scraps = 0
fps.tick(60) #Sets FPS to 60
for event in pygame.event.get(): #Checks each event
    if event.type == pygame.QUIT: #If one of the events are quit (when the user clicks the X in the top right corner) the window closes
        pygame.quit()
    if event.type == pygame.KEYUP:
        print(event)
        #If the user stop pressing one of the arrow keys it sets all the smooth values to 0 so it stops increasing the x or y coordinate
        if event.key == pygame.K_w:
            smoothy = 0
        if event.key == pygame.K_s:
            smoothy = 0 
        if event.key == pygame.K_a:
            smoothx = 0
        if event.key ==pygame.K_d:
            smoothx = 0

    if event.type == pygame.KEYDOWN: #Checks for a keypress
        print(event)
        if  event.key == pygame.K_w:
            smoothy -= 5 #reduces the y by 5 so player moves up
        if  event.key == pygame.K_s:
            smoothy += 5 #increases the y by 5 so player moves down
        if  event.key == pygame.K_a:
            smoothx -= 5 #reduces the x by 5 so player moves left
        if  event.key == pygame.K_d:
            smoothx += 5 #increases the x by 5 so player moves right

Answer 1

使用KEYUP中的add / substract，就像在KEYDOWN中一样，但符号相反。

    if event.type == pygame.KEYUP:
        print(event)
        if event.key == pygame.K_w:
            smoothy += 5
        if event.key == pygame.K_s:
            smoothy -= 5 
        if event.key == pygame.K_a:
            smoothx += 5
        if event.key ==pygame.K_d:
            smoothx -= 5

    if event.type == pygame.KEYDOWN: #Checks for a keypress
        print(event)
        if  event.key == pygame.K_w:
            smoothy -= 5 #reduces the y by 5 so player moves up
        if  event.key == pygame.K_s:
            smoothy += 5 #increases the y by 5 so player moves down
        if  event.key == pygame.K_a:
            smoothx -= 5 #reduces the x by 5 so player moves left
        if  event.key == pygame.K_d:
            smoothx += 5 #increases the x by 5 so player moves right

Answer 2

我通常以这种方式处理运动：如果按下一个键，我将x和y速度设置为所需的值，并更新主循环中的位置。为了停止左右移动，我还要检查角色是向左移动还是向右移动smoothx > 0，然后再将值设置为0.如果按左边两个角色，角色将不会停止和右键同时。

if event.type == pygame.KEYDOWN:
    if  event.key == pygame.K_w:
        smoothy = -5
    elif  event.key == pygame.K_s:
        smoothy = 5
    elif  event.key == pygame.K_a:
        smoothx = -5
    elif  event.key == pygame.K_d:
        smoothx = 5
elif event.type == pygame.KEYUP:
    if event.key == pygame.K_w and smoothy < 0:
        smoothy = 0
    elif event.key == pygame.K_s and smoothy > 0:
        smoothy = 0
    elif event.key == pygame.K_a and smoothx < 0:
        smoothx = 0
    elif event.key ==pygame.K_d and smoothx > 0:
        smoothx = 0

对于上下运动而言，这并不重要，因为同时上下都很难同时按下，但当然你也可以检查一下这一点。

Pygame：KEYDOWN和KEYUP同时被触发，不会导致网络移动

2 个答案: